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Finding the Fourth Proportional to 18,371.88, 27,566.91 and 7,286.49

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Solution

The fourth proportional to 18,371.88, 27,566.91 and 7,286.49 is: 10,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.88 : 27,566.91 = 7,286.49 : x
  2. Step 2: Convert to fraction form
    18,371.88/27,566.91 = 7,286.49/x
  3. Step 3: Cross multiply
    18,371.88x = 27,566.91 × 7,286.49
  4. Step 4: Simplify right side
    18,371.88x = 200,866,014.05
  5. Step 5: Solve for x
    x = 200,866,014.05/18,371.88
  6. Step 6: Final answer
    x = 10,933.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.